V200 POSITIONER
www.vacaccessories.com
92026r15 5
CAUTION: Beware of moving parts
when positioner is operated!
CAUTION: Beware of parts with
live voltage!
A voltage, which is normally not
dangerous, is supplied to the
positioner.
Avoid touching live parts and bare
wires as well as short circuiting live
parts and the housing.
CAUTION: Do not dismantle a
pressurized positioner!
Dismantling a pressurized positioner
will result in uncontrolled pressure
release. Always isolate the relevant
part of the pipeline. Release the pres-
sure from the positioner and the pip-
ing. Failure to do this may result in
damage or personal injury.
CAUTION: Do not exceed the
positioner performance limitations!
Exceeding the limitations marked on
the positioner may cause damage to
the positioner, actuator and valve.
Damage or personal injury may result.
1.3 Air quality recommendations
Poor air quality is one of the main causes of
premature functional problems with pneumatic
and electro pneumatic equipment. The pilot
valve and IP-converter are precision instru-
ments, and are therefore the most sensitive
parts of the positioner.
a) Water in the supply air is a natural occur-
rence. This happens when air is compressed.
The compression heats the air and the natural
degree of water in the air can remain as mois-
ture. When the air cools in pipes etc.
the moisture condenses and becomes liquid
water. Large quantities can build and some-
timesoodsmallwaterseparators.Thisex-
cess water will eventually reach the control
valve and positioner. This can cause corrosion
damage to the IP converter, causing the
unit to malfunction.
We strongly recommend the use of water
separators with adequate capacity. Coales-
ingltersfromareputablemanufacturerisan
inexpensive way to help prevent unit malfunc-
tions or failures, and add life to the product.
Theseltersremoveparticlesandmoisture
from air lines.
b) Oil in the supply air usually is from the main
compressor. Oil can clog the small nozzles
anddisturbtheapperintheIP-converter.It
can also cause the gold plated spool to “drag”
within the pilot valve. The result is poor control
or in the worst case, failure.
c) Particles in the air usually occur because
of corrosion. Dirt and particles can block the
small nozzles of the IP-converter.
They can also cause the pilot valve to mal-
function. The unit may completely fail.
ToensurenormaloperationalsafetywithVAC
positioner products, we recommend that a wa-
terseparatoranda<80micrometerlterare
mounted as close to the product as possible.
If large amounts of oil are present an oil sepa-
rator should be installed as well.
To further increase operational safety, we rec-
ommend that the working air is clean, dry and
free of moisture, water, oil, particles and other
contaminants, in accordance with the standard
ANSI/ISA–7.0.01–1996
1.4 Safety Instructions
